Bats sleep 18-20 hours per day.
5
Cows can sleep standing up, but they can only dream lying down.
745
Those who get out of bed by 7am are more likely to be thinner and happier.
20
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
People who sleep late have more mental stamina and can outperform early risers.
33
Lack of water is the #1 trigger of daytime fatigue.
148
The average cat sleeps about 2/3 of the day.
203